| 基于Schur正交的局部Fisher判别转子故障诊断 |
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| 引用本文： | 王广斌,李学军,黄良沛. 基于Schur正交的局部Fisher判别转子故障诊断[J]. 机械科学与技术, 2011, 0(1): 62-65 |
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| 作者姓名： | 王广斌 李学军 黄良沛 |
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| 作者单位： | 湖南科技大学先进矿山装备教育部工程研究中心;湖南科技大学机械设备健康维护省重点实验室; |
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| 基金项目： | 国家自然科学基金项目(51075140); 湖南省自然科学基金重点项目(09JJ8005); 湖南省科技创新团队资助 |
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| 摘 要： | 为更好识别转子系统故障,将正交思想引入到局部Fisher判别分析(LFDA)中,提出了一种基于Schur正交的局部Fisher判别(SOLFD)监督流形学习算法.算法以转子故障训练样本为监督信息,通过局部加权邻接矩阵重新定义类内散度和类间散度,构建局部Fisher判别函数.以判别函数值最大化为目标,通过Schur正交分...
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| 关 键 词： | Schur正交 局部Fisher判别 故障诊断 |
Rotor Fault Diagnosis Based on Schur Orthogonal Local Fisher Discriminant |
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| Wang Guangbin,Li Xuejun,Huang Liangpei. Rotor Fault Diagnosis Based on Schur Orthogonal Local Fisher Discriminant[J]. Mechanical Science and Technology for Aerospace Engineering, 2011, 0(1): 62-65 |
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| Authors: | Wang Guangbin Li Xuejun Huang Liangpei |
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| Affiliation: | Wang Guangbin1,Li Xuejun2,Huang Liangpei2 (1 Engineering Research Center of Advanced Mine Equipment of Ministry of Education,Hunan University of Science and Technology,Xiangtan 411201,2 Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment,Xiangtan 411201) |
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| Abstract: | In order to better identify the fault of a rotor system,a new method of fault diagnosis based on Schur orthogonal local Fisher discriminant(SOLFD) is proposed to solve the fault diagnosis of a rotor system.In this method,the training data as supervision information was used to compute the local with-class scatter and between-class scatter,and to construct the local fisher discriminant function.To maximize the value of discriminant function,optimal orthogonal projection vector was acquired.New test data was ... |
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| Keywords: | orthogonal iteration local Fisher discriminant fault diagnosis |
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